Ivanova, Aleksandra, Nina Tsvetkova, Rumen Harizanov, and Raina Borisova. 2019. “STUDY OF THE DISTRIBUTION OF PNEUMOCYSTOSIS IN BULGARIA BETWEEN SEPTEMBER 2017 AND APRIL 2019 BY USING REAL- TIME PCR”. PROBLEMS of Infectious and Parasitic Diseases 47 (2):24-27. https://pipd.ncipd.org/index.php/pipd/article/view/47_2_6_STUDY_OF_THE_DISTRIBUTION_OF_PNEUMOCYSTOSIS_IN_BULGARIA_B.